If you can’t get your PD from your doctor, however, you can take the measurement yourself, either using a ruler (this is much easier to do if you can get somebody to help) or by marking a current set of glasses and checking your focus (which takes some practice). You can create a draft and submit it for review or request that a redirect be created, but consider checking the search results below to see whether the topic is already covered. A. Not exactly. Viagra produces rather immediate results. ...